Coil Formers

Coil formers are components found in a transformer(an electrical device that transfers energy between two or more circuits). They're commonly used in electrical printed circuit boards(PCBs) to produce the energy needed to power electrical machines such as motors and generators.

Coil former applications

Coil formers are commonly used in transformers or as reactors in switch-mode power supplies. Transformers are used to bring voltage up or down in an AC electrical circuit. Both transformers and switch-mode power supplies can be used to convert mains AC power to DC power.

There are transformers all over every house. They are inside the chargers used to charge your mobile phone and other personal computing devices. They're also found in loudspeakers and microphones.

Advantages of using coil formers

  • Coil formers come in different types depending on whether you need to mount them horizontally or vertically.
  • Coil formers are usually made with an insulating material, such as thermosetting plastic, and are resistant to soldering and soldering heat.

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Description Price Accessory Type For Use With Dimensions Number of Pins Material Depth Length Width Maximum Temperature
RS Stock No. 170-1433
Mfr. Part No.B65808N1004D001
BrandEPCOS
SGD1.005
Each (On a Reel of 500)
units
Vertical Coil Former RM 6 Core - 4 GFR Thermosetting Plastic - - 7.45 (Dia.)mm +180°C
RS Stock No. 161-7774
Mfr. Part No.FS-2E-3611-20
BrandBlock
SGD3.35
Each (In a Bag of 5)
units
E 36 FS-1E-36 - 16 - - - - -
RS Stock No. 125-3408
Mfr. Part No.B65840B1006D001
BrandEPCOS
SGD1.17
Each (In a Pack of 10)
units
Horizontal Coil Former EP 7 Core - 6 GFR Thermosetting Plastic - 10.7mm 8.5mm +155°C
RS Stock No. 125-3596
Mfr. Part No.B65880E2012D001
BrandEPCOS
SGD2.166
Each (In a Pack of 5)
units
Vertical Coil Former PQ 32 x 30 Core - 12 GFR Thermosetting Plastic - 33mm 34.4mm +180°C
RS Stock No. 125-3611
Mfr. Part No.B66206B1110T001
BrandEPCOS
SGD2.03
Each (In a Pack of 10)
units
Horizontal Coil Former E 20/10/6 Core - 10 GFR Polyterephthalate - 22mm 21.2mm +155°C
RS Stock No. 170-1583
Mfr. Part No.B66414W1008D001
BrandEPCOS
SGD0.945
Each (On a Reel of 960)
units
Horizontal Coil Former EFD 15/8/5 Core - 8 GFR Thermosetting Plastic - 15mm 16.5mm +180°C
RS Stock No. 647-9553
Mfr. Part No.B66418W1008D001
BrandEPCOS
SGD2.122
Each (In a Pack of 5)
units
EFD 20/10/7 Coil Former B66417 20 x 20.3 x 10.4mm 8 GFR Thermosetting Plastic 10.4mm 20mm 20.3mm +180°C
RS Stock No. 125-3366
Mfr. Part No.B65734B1000T001
BrandEPCOS
SGD18.98
Each
units
Vertical Coil Former PM 114 x 93 Core - - Polyphenylene Sulphide - - 87 (Dia.)mm +155°C
RS Stock No. 170-1409
Mfr. Part No.B65672B0000T001
BrandEPCOS
SGD0.502
Each (On a Reel of 200)
units
Vertical Coil Former P 26 x 16 Core - - GFR Polyterephthalate - - 20.9 (Dia.)mm +155°C
RS Stock No. 170-1528
Mfr. Part No.B66306C1010T001
BrandEPCOS
SGD1.22
Each (On a Reel of 345)
units
SMD Coil Former E 13/7/4 Core - 10 GFR Liquid Crystal Polymer - 13mm 13mm +155°C
RS Stock No. 170-1569
Mfr. Part No.B66372A2000T001
BrandEPCOS
SGD7.125
Each (On a Reel of 30)
units
Horizontal Coil Former E 70/33/32 Core - - Polyphenylene Sulphide - 46.5mm 89mm +155°C
RS Stock No. 161-7777
Mfr. Part No.FS-2E-2507-20
BrandBlock
SGD2.488
Each (In a Bag of 5)
units
Bobbin Choke Converter Topologies, Transmitter - - - - - - -
RS Stock No. 840-7301
Mfr. Part No.FS-2E-7064-20
BrandBlock
SGD34.53
Each
units
E 70 FS-1E-7064-00 - - Ryton R-4 - - - -
RS Stock No. 212-6722
Mfr. Part No.B65816C1512T001
BrandEPCOS
SGD2.528
Each (In a Pack of 5)
units
RM 12 Coil Former B65815 38.4 x 28.4 x 23.4mm 12 GFR Polyterephthalate 23.4mm 38.4mm 28.4mm +155°C
RS Stock No. 125-3330
Mfr. Part No.B65522B0000T001
BrandEPCOS
SGD0.502
Each (In a Pack of 50)
units
Vertical Coil Former P 9 x 5 Core - - GFR Polyterephthalate - - 7.4 (Dia.)mm +155°C
RS Stock No. 170-1459
Mfr. Part No.B65840B1006D001
BrandEPCOS
SGD0.583
Each (On a Reel of 2000)
units
Horizontal Coil Former EP 7 Core - 6 GFR Thermosetting Plastic - 10.7mm 8.5mm +155°C
RS Stock No. 212-5088
Mfr. Part No.B65685B1016T001
BrandEPCOS
SGD12.01
Each
units
PM 62/49 Coil Former B65684 75.5 x 48.5 x 48mm 16 GFR Polyterephthalate 48mm 75.5mm 48.5mm +155°C
RS Stock No. 170-1435
Mfr. Part No.B65808N1006D002
BrandEPCOS
SGD0.827
Each (On a Reel of 500)
units
Vertical Coil Former RM 6 Core - 6 GFR Thermosetting Plastic - - 12.3 (Dia.)mm +180°C
RS Stock No. 125-3341
Mfr. Part No.B65542B0000T001
BrandEPCOS
SGD0.291
Each (In a Pack of 50)
units
Vertical Coil Former P 14 x 8 Core - - GFR Polyterephthalate - - 7.1 (Dia.)mm +155°C
RS Stock No. 125-3613
Mfr. Part No.B66206W1110T001
BrandEPCOS
SGD1.912
Each (In a Pack of 10)
units
Vertical Coil Former E 20/10/6 Core - 10 GFR Polyterephthalate - 22mm 13.9mm +155°C
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Description:
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EPCOS ER9 5/5 Coil former with gullwing terminals, ...
Description:
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Description:
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Description:
FS-2ETD series size 29/16/10 ferrite transformer bobbins with insulation according to class B and flammability to UL 94 V-0. These ferrite transformer bobbins are available as horizontal (stock number 840-7333) or vertical (stock number 840-7339) mount. Typical applications for these ...